package org.aatrox.myblog.common;

import org.codehaus.jackson.annotate.JsonIgnore;
import org.codehaus.jackson.map.annotate.JsonSerialize;

import java.io.Serializable;


@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
//保证序列化json的时候，对象为null时key也消失
public class ServerResponse<T> implements Serializable {

    private int status ;
    private String msg ;
    private T data ;

    private ServerResponse(int status){
        this.status = status ;
    }
    private ServerResponse(int status, String msg){
        this.status = status ;
        this.msg = msg ;
    }
    private ServerResponse(int status, String msg, T data){
        this.status = status ;
        this.msg = msg ;
        this.data = data ;
    }
    private ServerResponse(int status, T data){
        this.status = status ;
        this.data = data ;
    }

    @JsonIgnore
    //使之不在json序列化结果当中
    public boolean isSuccess(){
        return this.status == ResponseCode.SUCCESS.getCode() ;
    }

    public int getStatus(){
        return status ;
    }

    public T getData(){
        return data ;
    }

    public String getMsg(){
        return msg ;
    }

    public static <T> ServerResponse<T> createBySuccess(){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode()) ;
    }

    public static <T> ServerResponse<T> createBySuccessMessage(String msg){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg) ;
    }

    public static <T> ServerResponse<T> createBySuccess(T data){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),data) ;
    }

    public static <T> ServerResponse<T> createBySuccessMessage(String msg, T data){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg,data) ;
    }

    public static <T> ServerResponse<T> createByError(){
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(),ResponseCode.ERROR.getDesc()) ;
    }

    public static <T> ServerResponse<T> createByErrorMessage(String errorMessage){
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(),errorMessage) ;
    }

    public static <T> ServerResponse<T> createByErrorCodeMessage(int errorCode, String errorMessage){
        return new ServerResponse<T>(errorCode, errorMessage) ;
    }
}
